<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<select id="siteSel" name="" onchange="doAction()">
			<option value="">请选择网站</option>
			<option value="http://www.baidu.com">百度</option>
			<option value="http://www.163.com">网易</option>
			<option value="http://www.taobao.com">淘宝</option>
		</select>
	</body>
	<script type="text/javascript">
		function doAction(){
			var webUrl = document.getElementById('siteSel').value;
			location.href = webUrl;
		}
	</script>
</html>
